//
// Created by L5969 on 2022/6/10.
//
#include <stdio.h>
#define STR(s) #s
#define CON1(a, b) a##e##b
#define CON2(a, b) a##b##00
int main() {
    printf("%s\n", STR(c.biancheng.net));
    printf("%s\n", STR("c.biancheng.net"));
    printf("%f\n", CON1(8.5, 2));
    printf("%d\n", CON2(12, 34));
    return 0;
}